Liu Bei, Left General of the Han, Lord of Yicheng, Imperial Protector of Yuzhou, and an uncle of the Emperor. Here to visit the master.

玄德曰：“汉左将军宜城亭侯领豫州牧皇叔刘备，特来拜见先生。”

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The Bell Tower is the geographical center of Xi 'an and the four main streets are respectively Dong Dajie, Xi Dajie, Nan Dajie and Bei Dajie which are also the main commercial streets.

钟楼是西安市的地理中心，也是四条主要商业大街——东大街、西大街、南大街、北大街——的中心。

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The western part of Hua-Bei Basin is one of the oil and gas region in China. Seismic exploration has played an important role in the disco - very of various oil and gas traps.

华北盆地西部是我国主要的含油气区之一，地震勘探在发现各种油气圈闭中起了重要的作用。

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